Method for making shoes

ABSTRACT

A method for making shoes includes a first mold made of stiff material and a second mold has a concavity in which the shoe is received. The shoe includes a top portion, a connection member and an outsole, wherein the connection member and the outsole are connected to the top portion. The second mold transmits ultra-sonic thermo energy to the connection member and the outsole, so that the connection member and the outsole are properly shrank and securely matched to the top portion.

FIELD OF THE INVENTION

The present invention relates to a method for making shoes, and moreparticularly, to an improved method for making shoes by usingultra-sonic conductive mold to securely attach the connection to the topportion of the shoes.

BACKGROUND OF THE INVENTION

A conventional way to make shoes is shown in FIG. 1 and generallyincludes top portion 1, a connection member 2 and an outsole 3, whereinthe outsole 3 is connected to the top portion 1 by way of pouringmolding or adhering. The outsole 3 has to be connected with theconnection member 2 before being connected with the top portion and themethods for the connection between the connection member 2 and theoutsole 3 are adhering or stitching. However, it is noted that the sizesof the connection member 2 generally includes tolerances which make theconnection member 2 be larger than the outsole 3. When adhering orstitching the connection member 21 to the outsole 3, the shoe will havelumps on the periphery thereof and which are not accepted in the market.

The present invention intends to provide a method for making shoes byusing ultra-sonic to vibrate the mold to generate heat to securelyconnect and shrink the connection member and the outsole to the topportion of the shoe to eliminate the drawbacks happened in theconventional way.

SUMMARY OF THE INVENTION

The present invention relates to a method for making shoes and comprisesa first mold made of stiff material and a second mold. The second moldincludes a concavity and the shoe is received in the cavity. The shoecomprises a top portion, a connection member and an outsole. Theconnection member and the outsole are connected to the top portion andthe second mold transmits ultra-sonic thermo energy to the connectionmember and the outsole.

The primary object of the present invention is to provide a method formaking shoes and the method reduces defective products when connectingthe connection member and the outsole to the top portion of the shoes.

The present invention will become more obvious from the followingdescription when taken in connection with the accompanying drawingswhich show, for purposes of illustration only, a preferred embodiment inaccordance with the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an exploded view to show a conventional way to make a shoe;

FIG. 2 is an exploded view to show the method for making shoes of thepresent invention, and

FIG. 3 is a cross sectional view to show the method for making shoes ofthe present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

Referring to FIGS. 2 and 3, the method for making shoes comprises afirst mold 10 made of stiff material and is shaped as s shoe. The firstmold 10 has a first surface 101 to which the shoe 20 is mounted.

A shoe 20 comprises a top portion 201, a connection member 202 and anoutsole 203. The top portion 201 includes a bottom 2011 and a vamp 2012.The connection member 202 and the outsole 203 are mounted to the bottom2011 of the top portion 201. The connection member 202 and the outsole203 are made of thermo-plastic material.

A second mold 30 has a concavity and the shoe 20 is received in thecavity. The second mold 30 is electrically connected with an ultra-sonicgenerating device (not shown) and is able to transmit ultra-sonic thermoenergy to the connection member 202 and the outsole 203. The second mold30 includes an ultra-sonic wave transmittal portion 301 and anultra-sonic wave non-transmittable portion 302.

The ultra-sonic generating device vibrates the second mold 30 at afrequency range between 15, 000 to 20, 000 times per second which makethe second mold 30 to transmit ultra-sonic thermo energy to theconnection member 202 and the outsole 203. The thermal energy properlyshrinks and melts the connection member 202 and the outsole 203, and theconnection member 202 and the outsole 203 arc securely mounted to thebottom 2011 of the top portion 201. Therefore, when stitching, therewill be no lumps formed on the connection member 202 and the outsole203.

By the method of the present invention, the connection member 202 andthe outsole 203 are perfectly matched with the top portion 201 and themethod makes the stitching processes be easily and efficiently. Therewill be no lumps or gaps formed between the connection member 202 andthe top portion 201.

While we have shown and described the embodiment in accordance with thepresent invention, it should be clear to those skilled in the art thatfurther embodiments may be made without departing from the scope of thepresent invention.

1. A method for making shoes, comprising: a first mold made of stiffmaterial, and a shoe comprising a top portion, a connection member andan outsole, the connection member and the outsole connected to the topportion, and a second mold having a concavity and the shoe beingreceived in the cavity, the second mold transmitting ultra-sonic thermoenergy to the connection member and the outsole.
 2. The method asclaimed in claim 1, wherein the connection member is made ofthermo-plastic material.
 3. The method as claimed in claim 1, whereinthe outsole is made of thermo-plastic material.